<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        div {
            width: 100vw;
            height: 30vw;
            background-color: pink;
        }

        /* 视口宽度*视口高度=375*667 */
        .box {
            width: (68 / 3.75vw);
            height: (29 / 3.75vw);
            background-color: pink;
        }

        .box {
            width: (68 / 6.67vh);
            height: (29 / 6.67vh);
            background-color: green;
        }
    </style>
</head>

<body>
    <div>
        <img src="./../Resources/img/1.jpg" alt="" style="width: 100vw;">
    </div>
    <div>

    </div>
    <div>

    </div>
</body>

</html>